JP2006524549A5 - - Google Patents

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JP2006524549A5
JP2006524549A5 JP2006513285A JP2006513285A JP2006524549A5 JP 2006524549 A5 JP2006524549 A5 JP 2006524549A5 JP 2006513285 A JP2006513285 A JP 2006513285A JP 2006513285 A JP2006513285 A JP 2006513285A JP 2006524549 A5 JP2006524549 A5 JP 2006524549A5
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stop member
trial implant
stop
intervertebral space
implant
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JP2006524549A (en
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Priority claimed from US10/423,879 external-priority patent/US7491204B2/en
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Claims (39)

椎間空間を準備するための装置であって、当該装置は、
椎間空間内へ挿入される作用部と、
前記作用部の後方に配置されかつ前記作用部が椎間空間内へ移動されると椎骨と係合するのにきわめて十分な高さを有する止め部材を含む、調節可能な止め機構と、
を含み、
前記調節可能な止め機構は、前記作用部の後側と前記止め部材との間の距離を変更する調節を行うことにより、前記作用部が前記椎間空間内へ移動し得る挿入距離を変更可能であり、
前記調節可能な止め機構は、前記作用部と前記止め部材との間の相対的な動きを可能にする連結によって、前記作用部に連結される前記装置。 An apparatus for preparing an intervertebral space, the apparatus comprising:
An action part inserted into the intervertebral space;
An adjustable stop mechanism including a stop member disposed behind the working portion and having a height sufficiently high to engage the vertebra when the working portion is moved into the intervertebral space;
Including
The adjustable stop mechanism can change the insertion distance that the action part can move into the intervertebral space by adjusting the distance between the rear side of the action part and the stop member. And
The adjustable stop mechanism, the linkage to allow relative movement between said stop member and said working portion, said device being consolidated into said working portion. 前記連結は、螺合係合であり、また、前記止め部材は、前記調節可能な止め機構の螺子部材上において自由に回転するように装着され、また、前記螺子部材の軸線周りを前記止め部材が回転することを妨げるための構造体を含み、それによって、前記作用部との螺子係合に関連して前記螺子部材が移動されても、前記止め部材は、前記螺子部材の軸線周りを回転せずに前記作用部の後部に近づけられまた離される請求項１に記載の装置。 The connection is a threaded engagement, and the stop member is mounted for free rotation on a screw member of the adjustable stop mechanism, and the stop member is disposed about an axis of the screw member. Including a structure for preventing the rotation of the screw member, so that the stopper member rotates about the axis of the screw member even when the screw member is moved in relation to the screw engagement with the action portion. The device according to claim 1, wherein the device is moved closer to and away from the rear of the working part without. 前記作用部を貫通する孔を含み、当該孔の一部分は、ねじ溝が切られ、前記螺子係合の一部を形成する請求項２に記載の装置。   The apparatus according to claim 2, comprising a hole penetrating the working portion, a portion of the hole being threaded to form part of the screw engagement. 前記調節可能な止め機構は、前記螺刻部分を有する調節部材を備え、
前記止め部材は、前記調節部材上において自由に回転し得るが該調節部材に沿った長手方向の動きが制限されるように前記調節部材に装着されている請求項３に記載の装置。 The adjustable stop mechanism includes an adjustment member having the threaded portion;
4. The apparatus of claim 3, wherein the stop member is mounted on the adjustment member such that the stop member is free to rotate on the adjustment member but is limited in longitudinal movement along the adjustment member. 前記作用部および前記止め部材は、前記止め部材の回転を妨げまた回動し得るある位置に前記止め部材を維持するように相互に係合しており、前記止め部材の１本またはそれ以上のアームは、前記作用部が前記椎間空間内に移動されると椎骨と係合するように、垂直の位置である請求項４に記載の装置。   The action portion and the stop member are engaged with each other so as to maintain the stop member in a position where the stop member can be prevented from rotating and can be rotated. The apparatus according to claim 4, wherein the arm is in a vertical position such that the arm engages the vertebra when the working portion is moved into the intervertebral space. 前記作用部内において螺子係合する、ねじ山が切られた端部を有するシャフトを含んでおり、前記調節可能な止め機構は、前記シャフトの周りを自由に回転するが長手方向の動きは制限されるように前記シャフトに装着される請求項１に記載の装置。   Including a shaft having a threaded end that is threadedly engaged within the working portion, and wherein the adjustable stop mechanism is free to rotate about the shaft but has limited longitudinal movement. The apparatus of claim 1, wherein the apparatus is mounted on the shaft as described above. インプラントを受け入れる椎間空間を準備するための試用インプラントであって、当該試用インプラントは、
椎間空間内へ嵌合するように適合された形状の本体部と、
調節可能な止め機構であって、前記本体部の後方に配置され、かつ前記本体部が前記椎間空間内へ移動すると椎骨と係合するのにきわめて十分な高さを有する止め部材を含む調節可能な止め機構と、
を備え、
前記調節可能な止め機構は、前記本体部の後側と前記止め部材との間の距離を変更することによって、前記本体部と調節可能に係合可能であり、前記試用インプラントの前記本体部が前記椎間空間内へ移動し得る挿入距離を変更するように構成される試用インプラント。 A trial implant for preparing an intervertebral space for receiving an implant, the trial implant comprising:
A body portion shaped to fit into the intervertebral space;
An adjustable stop mechanism comprising a stop member disposed behind the body portion and having a height sufficiently high to engage the vertebra when the body portion moves into the intervertebral space Possible stop mechanism,
With
The adjustable stop mechanism is adjustably engageable with the body portion by changing a distance between a rear side of the body portion and the stop member, and the body portion of the trial implant is A trial implant configured to change the insertion distance that can be moved into the intervertebral space. 前記調節可能な止め機構は、螺子係合により前記試用インプラントと連結されることによって、前記螺子係合を一方向に進めると、前記止め部材が前記本体部へ近づけられ、また前記螺子係合を反対方向に進めると、前記止め部材が、前記本体部から離されるようになっている請求項７に記載の試用インプラント。 The adjustable stop mechanism, by being consolidated and the trial implant by screws engaging and advancing said screw engaging in one direction, the stop member is closer to said body portion and said threaded engagement The trial implant according to claim 7, wherein the stop member is separated from the main body when the head is advanced in the opposite direction. 前記止め部材は、前記調節可能な止め機構の螺子部材上において自由に回転するように装着されるとともに、前記螺子部材の軸線周りを前記止め部材が回転することを妨げるための構造体を含むことによって、前記試用インプラントとの螺子係合に関連して前記螺子部材が移動されても、前記止め部材は、前記被螺合部材の軸線周りを回転せずに前記本体部の後部に近づけられまた離される請求項８に記載の試用インプラント。   The stop member is mounted to freely rotate on the screw member of the adjustable stop mechanism, and includes a structure for preventing the stop member from rotating about the axis of the screw member. Thus, even if the screw member is moved in relation to the screw engagement with the trial implant, the stopper member can be brought close to the rear portion of the main body without rotating around the axis of the member to be screwed. The trial implant according to claim 8, which is released. 前記試用インプラントを貫通する孔を含み、当該孔の一部分は、ねじ溝が切られ、前記螺子係合の一部を形成する請求項９に記載の試用インプラント。   The trial implant of claim 9, including a hole through the trial implant, a portion of the hole being threaded to form part of the screw engagement. 前記試用インプラントは、上部および底部の少なくとも一方に前方から後方へのスロットを含み、当該スロットは、切り抜きツールを受け入れるように適合されている請求項７に記載の試用インプラント。   The trial implant of claim 7, wherein the trial implant includes a front-to-back slot in at least one of the top and bottom, the slot being adapted to receive a cutting tool. 前記試用インプラントの後側に形成された孔を備え、前記調節可能な止め機構は、前記挿入距離を変更するように前記孔の内外に移動可能である請求項７に記載の試用インプラント。   The trial implant according to claim 7, further comprising a hole formed on a rear side of the trial implant, wherein the adjustable stop mechanism is movable in and out of the hole so as to change the insertion distance. 前記孔は、前記調節可能な止め機構のねじ山部と係合するねじ溝部を有する請求項１２に記載の試用インプラント。   13. The trial implant of claim 12, wherein the hole has a threaded portion that engages a threaded portion of the adjustable stop mechanism. 前記調節可能な止め機構は、ねじ山部を有する調節部材を備え、前記止め部材は、自由に回転し得るが長手方向の動きを制限されるように前記調節部材に装着されている請求項１３に記載の試用インプラント。   14. The adjustable stop mechanism includes an adjustment member having a threaded portion, the stop member being mounted on the adjustment member so as to be freely rotatable but restricted in longitudinal movement. Trial implant as described in. 前記本体部および前記止め部材は、前記止め部材の回転を妨げまた回動し得るある位置に前記止め部材を維持するように相互に係合し、前記止め部材の１本またはそれ以上のアームは、前記試用インプラントが前記椎間空間内へ移動されると椎骨と係合するように、垂直位置である請求項１４に記載の試用インプラント。   The body portion and the stop member are engaged with each other so as to maintain the stop member in a position that prevents or rotates the stop member, and one or more arms of the stop member are 15. The trial implant of claim 14, wherein the trial implant is in a vertical position such that the trial implant engages a vertebra when moved into the intervertebral space. 前記本体部は、前記孔に隣接したスロットを含み、前記止め部材は、突起部を含み、当該突起部は、前記スロット内に受け入れられて、前記止め部材の回転を妨げ、また垂直に突出する１本または複数のアームとともに前記止め部材を適切な回動方向に維持する請求項１５に記載の試用インプラント。   The main body includes a slot adjacent to the hole, the stop member includes a protrusion, and the protrusion is received in the slot to prevent rotation of the stop member and protrude vertically. 16. A trial implant according to claim 15, wherein the stop member is maintained in an appropriate pivoting direction with one or more arms. 前記調節部材は、前記調節部材を回転させるためのツールを受け入れる構造体を後部に含む請求項１４に記載の試用インプラント。   15. The trial implant of claim 14, wherein the adjustment member includes a structure at the rear for receiving a tool for rotating the adjustment member. 前記調節部材は、
前記螺刻部分よりも断面が小さく滑らかな中央シャフトと、
前記螺刻部分から間隔をおいて配置され大きくなった部材と、
を含み、
前記止め部材は、
前記被螺合部と前記大きくなった部材との間の前記滑らかなシャフト上において回転可能なスリーブと、
当該スリーブから反対方向に延びる一対のアームと、
を含む請求項１４に記載の試用インプラント。 The adjusting member is
A smooth central shaft having a smaller cross-section than the threaded portion;
A member which is disposed at a distance from the threaded portion and is enlarged;
Including
The stop member is
A sleeve rotatable on the smooth shaft between the threaded portion and the enlarged member;
A pair of arms extending in opposite directions from the sleeve;
The trial implant according to claim 14, comprising: 前記本体部は、前記孔に隣接したスロットを含み、前記止め部材は、突起部を含み、当該突起部は、前記スロット内に受け入れられて、前記止め部材の回転を妨げかつ前記アームが垂直に突出する方向を適切に維持する請求項１８に記載の試用インプラント。   The body includes a slot adjacent to the hole, the stop member includes a protrusion, the protrusion is received in the slot to prevent rotation of the stop member and the arm is vertical. The trial implant according to claim 18, wherein the protruding direction is properly maintained. 前記試用インプラント内に螺子係合する螺合端部を有するシャフトを含み、前記調節可能な止め機構は、前記シャフトに装着されて、該シャフトの周りを自由に回転するがそれに沿って長手方向へ移動することは制限されている請求項７に記載の試用インプラント。   Including a shaft having a threaded end for threading engagement within the trial implant, wherein the adjustable stop mechanism is mounted on the shaft and rotates freely about the shaft but longitudinally therewith. 8. A trial implant according to claim 7, wherein movement is restricted. 前記インプラントは、前記本体部より幅の狭い尾部を有し、また、前記調節可能な止め機構は、前記尾部の側面に沿って前記本体部に近づけられまた遠ざけられる止め部材を有する請求項２０に記載の試用インプラント。   21. The implant according to claim 20, wherein the implant has a tail that is narrower than the body, and the adjustable stop mechanism includes a stop member that is moved toward and away from the body along the side of the tail. The trial implant as described. 前記調節可能な止め機構は、前記止め部材の回転を妨げるように前記尾部の側面と係合する請求項２１に記載の試用インプラント。   24. The trial implant of claim 21, wherein the adjustable stop mechanism engages a side surface of the tail to prevent rotation of the stop member. 前記試用インプラントは、上部および底部の少なくとも一方に沿って前方から後方へ延びるスロットを有し、また、前記試用インプラントに装着して後方から前方へ移動させ得るチゼル切り抜きツールを含む請求項２１に記載の試用インプラント。   22. The trial implant has a slot extending from front to back along at least one of the top and bottom and includes a chisel cutting tool that can be attached to the trial implant and moved from back to front. Trial implant. 請求項２３に記載の試用インプラントの複数個のセットであって、前記セットの前記試用インプラントの全てについて各試用インプラントの前部からその尾部の後部までの距離が同じになるように、高さは同じだが表面積が異なり、かつ尾部の長さが異なっており、その結果、所与のチゼルが、そのセットの試用インプラントの全てに適合する、複数の試用インプラントを含む、前記セット。   24. A plurality of sets of trial implants according to claim 23, wherein the height is such that the distance from the front of each trial implant to the back of its tail is the same for all of the trial implants of the set. A said set comprising a plurality of trial implants that are the same but have different surface areas and different tail lengths so that a given chisel fits all of the set of trial implants. インプラントを挿入するための準備を椎間空間に行う際に使用する器具であって、An instrument used to prepare an intervertebral space for insertion of an implant,
長いツールと、With long tools,
前記長いツールにより保持されて、準備機能を果たすように前記椎間空間内へ挿入し得る第１の部材と、A first member held by the long tool and insertable into the intervertebral space to perform a preparatory function;
前記第１の部材と相対的に移動するように作動的に係合し得る止め部材であって、準備が行われる前記椎間空間に隣接する椎骨に近づけられたとき、前記椎間空間に入らずに、前記隣接する椎骨の少なくとも１つと係合するような大きさおよび配置である止め部材と、A stop member that is operatively engageable to move relative to the first member and enters the intervertebral space when approached to a vertebra adjacent to the intervertebral space to be prepared. A stop member sized and arranged to engage at least one of the adjacent vertebrae;
を備える器具。A device comprising: 前記第１の部材と前記止め部材との一方の方向への相対的な移動は、前記止め部材を、前記第１の部材に近づけ、また前記第１の部材から他方の方向へ離す請求項２５に記載の器具。26. The relative movement of the first member and the stop member in one direction causes the stop member to move closer to the first member and away from the first member in the other direction. The instrument described in 1. 前記止め部材の前記第１の部材との作動的係合には、螺合係合が含まれる請求項２５に記載の器具。26. The instrument of claim 25, wherein operative engagement of the stop member with the first member includes threaded engagement. 前記止め部材は、前記長いツールに自由に回転するように装着され、前記長いツールの前方端部は、前記第１の部材と前記螺合係合をする請求項２７に記載の器具。28. The instrument of claim 27, wherein the stop member is mounted for free rotation on the long tool, and a forward end of the long tool is in threaded engagement with the first member. 前記止め部材が前記長いツールの軸線周りを回転することを妨げる構造体を含む請求項２８に記載の器具。29. The instrument of claim 28, wherein the stop member includes a structure that prevents rotation about an axis of the long tool. 前記止め部材は、前記第１の部材と作動的に係合するとともに、前記第１の部材の孔の中で可動であり、当該孔は、前記長いツールと前記第１の部材と係合しない請求項２５に記載の器具。The stop member is operatively engaged with the first member and movable within the hole of the first member, the hole not engaging the long tool and the first member. 26. The instrument of claim 25. ねじ山が切られ前記孔と係合する端部を有するロッドを含み、前記止め部材は、前記ロッドに回転自在に装着される請求項３０に記載の器具。32. The instrument of claim 30, including a rod having an end that is threaded and engages the hole, wherein the stop member is rotatably mounted on the rod. 前記第１の部材は、試用インプラントである請求項２５に記載の器具。26. The device of claim 25, wherein the first member is a trial implant. 椎間空間内にインプラントを挿入するための準備を当該空間内に対して行う際に使用する器具であって、An instrument for use in preparing for insertion of an implant into an intervertebral space;
前記インプラントの大きさの決定を容易にするために椎間空間内に挿入して、その後、その内部にインプラントが挿入される、試用インプラント本体部と、A trial implant body that is inserted into the intervertebral space to facilitate determination of the size of the implant, and thereafter the implant is inserted therein;
前記本体部を前記椎間空間内に挿入している間、前記本体部を保持するための長いツールと、A long tool for holding the main body while inserting the main body into the intervertebral space;
前記本体部に対して移動し得るように前記本体部と作動的に係合し得る調節可能な止め部材であって、前記隣接する椎骨と係合するが、当該椎骨に近づけられて接触しても前記椎間空間に入らないような大きさおよび配置にされる調節可能な止め部と、An adjustable stop member operatively engageable with the body portion for movement relative to the body portion, wherein the adjustable stop member engages the adjacent vertebrae but is brought into close contact with the vertebrae An adjustable stop that is sized and positioned so as not to enter the intervertebral space;
を備える器具。A device comprising: 前記止め部材は、前記本体部に対し、該本体部の方へ近づく方向と、該本体部から離れる方向に可動である請求項３３に記載の器具。The instrument according to claim 33, wherein the stop member is movable relative to the main body portion in a direction approaching the main body portion and in a direction away from the main body portion. 前記止め部材と前記試用インプラントとの作動的係合には、螺合係合が含まれる請求項３３に記載の器具。34. The instrument of claim 33, wherein the operative engagement between the stop member and the trial implant includes a threaded engagement. 前記止め部材は、前記長いツールに自由に回転するように装着され、前記長いツールの前方端部は、前記本体部と螺合係合する請求項３５に記載の器具。36. The instrument of claim 35, wherein the stop member is mounted for free rotation on the long tool, and a forward end of the long tool is threadably engaged with the body. 前記止め部材が前記長いツールの軸線周りを回転することを妨げるための構造体を含む請求項３６に記載の器具。37. The instrument of claim 36, comprising a structure for preventing the stop member from rotating about an axis of the long tool. 前記止め部材は、前記本体部の孔内で作動的に係合し、前記長いツールと前記本体部とは係合しない前記本体部の孔の中を可動である請求項３３に記載の器具。34. The instrument of claim 33, wherein the stop member is operatively engaged within a hole in the body portion and is movable within a hole in the body portion that does not engage the long tool and the body portion. ねじ山が切られて前記孔と係合し得る端部を有するロッドを含み、前記止め部材は、前記ロッドに回転自在に装着される請求項３８に記載の装置。39. The apparatus of claim 38, comprising a rod having an end that can be threaded to engage the hole, wherein the stop member is rotatably mounted on the rod.
JP2006513285A 2003-04-28 2004-04-23 Apparatus and method for preparing an intervertebral space for receiving an artificial disc implant Withdrawn JP2006524549A (en)

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US10/423,879 US7491204B2 (en) 2003-04-28 2003-04-28 Instruments and method for preparing an intervertebral space for receiving an artificial disc implant
PCT/US2004/012664 WO2004098380A2 (en) 2003-04-28 2004-04-23 Instruments and method for preparing an intervertebral space for receiving an artificial disc implant

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JP2006524549A5 true JP2006524549A5 (en) 2007-06-14

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